Oscar rothrock



(No Model.)

0. ROTHROOK.

HEATER AND FEEDER.

No. 368,170. Patented Aug. 9, 1887.

N PETERS. Phclo-Lnhugmphcr. Washmgiun. n40,

UNITED STATES PATENT QEEICE.

OSCAR ROTHROCK, OF NEXV YORK, N. Y.

HEATER AND FEEDER.

SPECIFICATION forming part of Letters Patent No. 368,170, dated August9, 1887.

Application filed December-J8, I856. Serial No. 222,772. {No model.)

To all whom it may concern.-

Be it known that l, Oscan ROTHROOK, of New York city, in the county ofNew York and State of New York, have invented certain new and usefulImprovements in Heaters and Feeders for SteanrBoilers; and I do herebydeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form part of this specification.

This invention relates to water heaters and feeders for boilers of everydescription. Its object is to supply steam-boilers with feedwater ofhigh or low temperature.

It consists in important details in the arrangement of circulating-coilswithin a casing or shell in which the exhaust-steam is utilized to heatthe water, and the arrangement of a pump and injector, with theirconnecting pipes and valves, by which the water of differenttemperatures can be fed to the boiler or heater, or from the heater tothe boiler, the details of which will be more fully described in thespecification and pointed out in the claims.

teferring to the drawings, in which similar letters and figures ofreference indicate the same part in all the figures, Figure 1 showspump, injector, and eirculati ng-pipes and their valves detached fromthe heater and boiler. Fig. 2 shows the heater applied to a boiler. Fig.3 is a sectional view of the heater, showing the manner of connectingthe coils to the single pipes. Fig. 4 shows the heater part in section,another way of connecting the coils to single pipes; and Fig. '5 showsmy heater, feeder, and circulating-pipes attached to alocomotive-boiler.

A is a pipe from cold-water supply to pump p, which is provided with avalve, 1, and

valve 22; 13, the pipe from A. to pipe D, having the valve 4; O, pipedirect from pump to boiler with valve 2;1 l, injector; E, injectorcoldwater supply-pipe, with valve 17; F, pipe from injector to boiler,with the valves 5 and 19 and with branch pipe M and valve 9,whicl1 inits turn leads into pipe M, which is pro vided with valves 8, 10, and12; G, pipe from heater-coils to injector or pump, having valves 14- and16; G", pipe from heatercoils to injector-tube. which is provided withvalves 11 and 15; H, heater-shell containing the coiled water-pipes.

Pipe G Fig. 4, has no connection on the coils in this case, but stops atpipe M, the coils having but one inlet, I), and outlet G 71,- and K, theusual steam-pipes to the injector, having valves 13 and 18.

D is a pipe from pump to coils within the shell, having valves 3, 6, and7. A short pipe having valve 20 connects pipe is and M. Pipe M connectsdelivcrypipes G, G D, and F, and M connects pipes M and F.

N is a drip-pipe and cock leading from bottom of shell; P, exhaust-steampipes leading into shell of heater; Y, exhaust pipe or globe from.heater.

1) represents the pump; R, rods for controlling valves 2 and 3 forpumping waterinto the boiler or into the heater; S, rod to control valvein exhaust-pipe to direct the exhaust steam up the stack or into heater.

By means of pipes M and 1W water circulates either way through theinjector. By

means of pipe B and valves 1, 2, 3, and 4 the pump may feed water to theboiler or to the heater.

When the pipe 7. is made to connect with pipe M by means of valve 20, orwhen pipe E can feed from supplyof water above the coils, the injectorcan be dispensed with.

In Figs. 1, 2, and 5 of the drawings,water may be fed by the pumpthrough pipe D, coils, pipe G, the injector, and pipe F to the boiler;also, through pipe D, coils, pipe G, the injector, and pipe F to boiler;again, through pipe D, coils, pipe Gor G, pipe M and pipe F to boiler.Again, hot water from the coils may be fed by the pump through pipe 0 toboiler. Again, cold water may be fed through pipe 0 from pipe A; and,again, the pump may feed. hot water from coils through injector, pipe Aand F, when pipe D feeds the coils from a supply above the heater, asmay be done in stationary service, the pipe A be ing supplied with anextra valve near connection of pipe E, pipes M G, series of coils, pipesD and B, and pump to boiler, or through pipes G and M, coils, pipe D,and back through M M and F to boiler. By connecting pipes M with pipe Mbetween G and G,

water may be fed either way by injector-pipe water delivered by a singlepipe into four to eight minute streams enables me to heat the water to avery high temperature, and when delivering it into the boiler throughinjector or by pipe is and its connections to pipe M the water will benearly or quite the temperature of the water already in the boiler. Thisresults without any tronble or expense; hence the great economy in fuel,besides other advantages incident to the use of high temperature offeed-water. In Fig. 3 I have given the pipes within the heater twooutlet-connections, G G and an inlet-pipe, D; in Fig. 4 but one inletand one outlet pipe, the pipes M M on the outside of the heater servingto form a circuit in every direction.

In Fig. 3 the,shell containing the coils is riveted or bolted to theboiler just behind the steam-dome. In Fig.5 it is placed over thefire-box, all the controlling devices being located to the side, front,and rear of the shell.

The heater may be located with the present described connection at anyconvenient point on the boiler or in the engine-room. In all ordinarycases I rivet or bolt the shell to the boiler, as shown.

The shells for the heaters are made either with or without a bottomsheet, usually with out when secured to the top of a boiler, and

- the top plate is secured with bolts, so as to be easily removed forrepairs.

The shell is protected, when exposed to the weather, by a lightcovering.

The arrangement of the pipes G M M and their connections with valves 5,6, 7, 8, 9, 10, 11, 12, 14, 16, 19, and 20 are new in this construction.

Having thus fully described my invention, what I- claim as new, anddesire to secure by Letters Patent of the United States, is-

1. In a water heater and feeder for steamboilers, the combination of thewatercoil heater with the injector and pipes G, D, and M, connected tothe said heater and injector, whereby the injector may feed hot water ineither direction from the coils within the heater-shell, substantiallyas shown and described.

2. In a water heater and feeder for steam boilers, the combinationof thewater-coil with the pipes G", M, M, E, and F, connected to the saidcoils and each other, whereby the in jector may feed hot water in eitherdirection from the said coils or cold water to the boiler,

substantially as shown and described.

, 3. In a water heater and feeder for steamboilers, the combination ofthe pump with-the delivery-pipesprovided with valves 1,2,3, and 4, theheater, the injector, and the pipes E and G, whereby the water may beforced through the coilsto the pump for delivery to the boiler or to theinjector or through pipes M and F, substantially as shown and described.

4. In a water heater and feeder for steamboilers, the combination of thepipes P, Y, M, M", G, G,F, h, K, E, and D with the valves 5, 6, 7, 8,9,10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and 20, the heater, theinjector, and the pump, substantially as shown and described.

5. The combination of a shell or box with a series of coiled Water-pipesheld within said shell, and provided with two outlet and one OSCARROTIEIROOK.

Witnesses:

S. J. EVERIT'I, SYLvEsTnR Porn.

